ST2S08BPQR STMicroelectronics, ST2S08BPQR Datasheet - Page 8

• Manufacturer Part Number: ST2S08BPQR
• Description: HANDHELD & PHOTOVOLTAIC
• Manufacturer: STMicroelectronics
• Series: -r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of ST2S08BPQR

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.8 V ~ 4.68 V
• Current - Output: 1.5A
• Frequency - Switching: 1.5MHz
• Voltage - Input: 3 V ~ 5.5 V
• Operating Temperature: -30°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 12-VQFN Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Typical performance characteristics
6
8/18
Figure 4.
Figure 6.
Figure 8.
100
100
90
80
70
60
50
40
30
20
10
98
96
94
92
90
88
86
84
82
80
0.84
0.83
0.82
0.81
0.79
0.78
0.77
0.76
0
0.8
-50
0
-50
-25
0.25
-25
Typical performance characteristics
Feedback voltage vs. temperature
Efficiency vs. output current 2
Duty cycle vs. temperature
V
IN
= 5 V, V
V
0
IN
0
0.5
= 5 V, V
V
Output Current 2 [A]
IN
fb1
Temperature [°C]
= 5 V, V
Temperature [°C]
,V
O2
25
fb2
25
= 3.3 V, V
connected to V
FB1
0.75
= V
FB2
50
O1
= 0.7 V
50
NO LOAD
O1-2
1
, I
75
O1
75
= I
O2
= 10 mA
1.25
100
100
Doc ID 18290 Rev 1
AM07885v1
AM07883v1
AM07887v1
125
125
1.5
Figure 5.
Figure 7.
Figure 9.
100
1.4
1.2
0.8
0.6
0.4
0.2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
90
80
70
60
50
40
30
20
10
1
0
0
-50
-50
0
-25
-25
V
0.25
IN
= 5.5 V , I
Efficiency vs. output current 1
Switching frequency vs.
temperature
Inhibit threshold vs. temperature
O1
V
0
0
IN
= I
= 5 V, V
0.5
O2
Output current 1 [A]
V
= 100 mA
IN
= 5 V, V
Temperature [°C]
O1
25
25
= 1.2 V , V
FB1
T [°C]
0.75
= V
FB2
50
O2
50
= 0.7 V
NO LOAD
1
75
75
1.25
ON
OFF
100
100
ST2S08B
AM07884v1
AM07889v1
AM07886v1
125
125
1.5